Newest 'ffmpeg' Questions - Stack Overflow

[Turmux][ffmpeg] encounter "can't open stat file" when use "-pass"

15 février 2020, par Jackal Zhao

I installed ffmpeg in turmux, in my home directory, ran:

ffmpeg -y -i /sdcard/FFMPEG/in.mp4 -c:v libx264 -b:v 2600k -pass 2 -c:a copy /sdcard/FFMPEG/out3.mp4

the error bumps:

ratecontrol_init: can't open stats file

if I enter /sdcard/FFMEPG folder first, then run ffmpeg -y -i /sdcard/FFMPEG/in.mp4 -c:v libx264 -b:v 2600k -pass 2 -c:a copy /sdcard/FFMPEG/out3.mp4 the task will run successfully.

then I went back to turmux home directory, ran ffmpeg -y -i /sdcard/FFMPEG/in.mp4 -c:v libx264 -b:v 2600k -pass 2 -c:a copy /sdcard/FFMPEG/out3.mp4 , error still happens.

so I then added -strict -2 -passlogfile /tmp/mydummy and ran ran ffmpeg -y -i /sdcard/FFMPEG/in.mp4 -c:v libx264 -strict -2 -passlogfile /sdcard/FFMPEG/ -b:v 2600k -pass 2 -c:a copy /sdcard/FFMPEG/out3.mp4 , and same error still happens.

My question is, how to use ffmpeg "-pass" in termux successfully without especially entering the target folder?

How to process .ts files used by flowplayer ?

15 février 2020, par user1424739

Flowplay seems to be used by jove.com

https://www.jove.com/video/59612/3d-kinematic-gait-analysis-for-preclinical-studies-in-rodents

Take the above URL as an example, it will use .ts files like this (via Google Chrome devtools)

https://cloudflare2.jove.com/CDNSource/hls/59612/59612_3.ts

But I am not sure how to make the .ts file viewable locally.

https://askubuntu.com/questions/3645/how-do-i-convert-ts-files-into-something-useful

I tried something like this. But I always get errors.

$ ffmpeg -i 50191_1.ts -c:v libx264 -crf 0 -c:a copy output.mp4
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
  built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  libavutil      56. 14.100 / 56. 14.100
  libavcodec     58. 18.100 / 58. 18.100
  libavformat    58. 12.100 / 58. 12.100
  libavdevice    58.  3.100 / 58.  3.100
  libavfilter     7. 16.100 /  7. 16.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  1.100 /  5.  1.100
  libswresample   3.  1.100 /  3.  1.100
  libpostproc    55.  1.100 / 55.  1.100
50191_1.ts: Invalid data found when processing input

Does anybody know how to convert the .ts files?

EDIT: I got something like this.

$ cat 59612_.m3u8
#EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:17
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-KEY:METHOD=AES-128,URI="https://cloudflare2.jove.com/CDNSource/hls/59612/59612.key"
#EXTINF:16.683333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_0.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_1.ts
#EXTINF:6.606600,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_2.ts
#EXTINF:16.683333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_3.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_4.ts
#EXTINF:10.877533,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_5.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_6.ts
#EXTINF:7.907900,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_7.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_8.ts
#EXTINF:10.910900,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_9.ts
#EXTINF:9.676333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_10.ts
#EXTINF:8.375033,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_11.ts
#EXTINF:12.645967,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_12.ts
#EXTINF:13.146467,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_13.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_14.ts
#EXTINF:6.840167,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_15.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_16.ts
#EXTINF:10.877533,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_17.ts
#EXTINF:16.683333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_18.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_19.ts
#EXTINF:6.706700,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_20.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_21.ts
#EXTINF:16.683333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_22.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_23.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_24.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_25.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_26.ts
#EXTINF:16.649967,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_27.ts
#EXTINF:8.308300,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_28.ts
#EXTINF:8.308300,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_29.ts
#EXTINF:5.672333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_30.ts
#EXTINF:10.677333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_31.ts
#EXTINF:16.683333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_32.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_33.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_34.ts
#EXTINF:7.507500,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_35.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_36.ts
#EXTINF:16.683333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_37.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_38.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_39.ts
#EXTINF:7.273933,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_40.ts
#EXTINF:16.683333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_41.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_42.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_43.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_44.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_45.ts
#EXTINF:16.683333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_46.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_47.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_48.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_49.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_50.ts
#EXTINF:16.683333,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_51.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_52.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_53.ts
#EXTINF:13.079733,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_54.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_55.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_56.ts
#EXTINF:13.113100,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_57.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_58.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_59.ts
#EXTINF:8.341667,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_60.ts
#EXTINF:6.573233,
https://cloudflare2.jove.com/CDNSource/hls/59612/59612_61.ts
#EXT-X-ENDLIST

Convert RTP/UDP Stream to HTTP with ffmpeg

14 février 2020, par inversus

As you may know, Android uses a strange implementation of RTP - It can only play low bitrate RTP streams. On the other hand, it can play Full HD HTTP stream flawlessly.

I'm trying a workaround for this problem: As stated in the title, using ffmpeg to convert the RTP/UDP stream to HTTP.

I've already compile ffmpeg for android, but I'm having difficulties configuring the ffserver.conf.

Is it possible to achieve what I want with ffmpeg?
I dont need any transcoding, will it use lots of the processor/memory?
Can you help me with these configurations?

I receive a udp/rtp multicast stream:

udp://@239.192.1.31:1234 or rtp://@239.192.1.31:1234 - TV channels

I want to output to HTTP:

http://127.0.0.1:8090/stream.mp4

Thank you in advance
inversus

ffmpeg merge multiple (N) mono audio channels of a MXF video to multiple (M) stereo channels of MP4 video

14 février 2020, par Laura

I have an MXF file with 16 audio mono streams and I need to recode it in a mp4 file with 2<=n<=16 channels merging input streams, e.g. input channels 1 and 2 on output channel 1 and 9 and 10 on output channel 2. This job will be done with ffmpeg. I read the documentation and found the amerge and amix filters that would be nice, but they output one channel only. Is there any solution for this problem?

Thanks, Laura

Find below the output of ffprobe on mxf file:

{ "streams":[ { "index":0, "codec_name":"mpeg2video", "codec_long_name":"MPEG-2 video", "profile":"4:2:2", "codec_type":"video", "codec_time_base":"1/25", "codec_tag_string":"[0][0][0][0]", "codec_tag":"0x0000", "width":1920, "height":1080, "coded_width":0, "coded_height":0, "has_b_frames":1, "sample_aspect_ratio":"1:1", "display_aspect_ratio":"16:9", "pix_fmt":"yuv422p", "level":2, "color_range":"tv", "color_space":"bt709", "color_transfer":"bt709", "color_primaries":"bt709", "chroma_location":"topleft", "field_order":"tt", "refs":1, "r_frame_rate":"25/1", "avg_frame_rate":"25/1", "time_base":"1/25", "start_pts":0, "start_time":"0.000000", "duration_ts":448, "duration":"17.920000", "bit_rate":"50000000", "disposition":{ "default":0, "dub":0, "original":0, "comment":0, "lyrics":0, "karaoke":0, "forced":0, "hearing_impaired":0, "visual_impaired":0, "clean_effects":0, "attached_pic":0, "timed_thumbnails":0 }, "tags":{ "file_package_umid":"0x060A2B340101010501010D2313000000968F75C6B5B34D649967EEDD0076B989" } }, { "index":1, "codec_name":"pcm_s24le", "codec_long_name":"PCM signed 24-bit little-endian", "codec_type":"audio", "codec_time_base":"1/48000", "codec_tag_string":"[0][0][0][0]", "codec_tag":"0x0000", "sample_fmt":"s32", "sample_rate":"48000", "channels":1, "bits_per_sample":24, "r_frame_rate":"0/0", "avg_frame_rate":"0/0", "time_base":"1/48000", "start_pts":0, "start_time":"0.000000", "duration_ts":860160, "duration":"17.920000", "bit_rate":"1152000", "bits_per_raw_sample":"24", "disposition":{ "default":0, "dub":0, "original":0, "comment":0, "lyrics":0, "karaoke":0, "forced":0, "hearing_impaired":0, "visual_impaired":0, "clean_effects":0, "attached_pic":0, "timed_thumbnails":0 }, "tags":{ "file_package_umid":"0x060A2B340101010501010D2313000000968F75C6B5B34D649967EEDD0076B989" } }, { "index":2, "codec_name":"pcm_s24le", "codec_long_name":"PCM signed 24-bit little-endian", "codec_type":"audio", "codec_time_base":"1/48000", "codec_tag_string":"[0][0][0][0]", "codec_tag":"0x0000", "sample_fmt":"s32", "sample_rate":"48000", "channels":1, "bits_per_sample":24, "r_frame_rate":"0/0", "avg_frame_rate":"0/0", "time_base":"1/48000", "start_pts":0, "start_time":"0.000000", "duration_ts":860160, "duration":"17.920000", "bit_rate":"1152000", "bits_per_raw_sample":"24", "disposition":{ "default":0, "dub":0, "original":0, "comment":0, "lyrics":0, "karaoke":0, "forced":0, "hearing_impaired":0, "visual_impaired":0, "clean_effects":0, "attached_pic":0, "timed_thumbnails":0 }, "tags":{ "file_package_umid":"0x060A2B340101010501010D2313000000968F75C6B5B34D649967EEDD0076B989" } }, { "index":3, "codec_name":"pcm_s24le", "codec_long_name":"PCM signed 24-bit little-endian", "codec_type":"audio", "codec_time_base":"1/48000", "codec_tag_string":"[0][0][0][0]", "codec_tag":"0x0000", "sample_fmt":"s32", "sample_rate":"48000", "channels":1, "bits_per_sample":24, "r_frame_rate":"0/0", "avg_frame_rate":"0/0", "time_base":"1/48000", "start_pts":0, "start_time":"0.000000", "duration_ts":860160, "duration":"17.920000", "bit_rate":"1152000", "bits_per_raw_sample":"24", "disposition":{ "default":0, "dub":0, "original":0, "comment":0, "lyrics":0, "karaoke":0, "forced":0, "hearing_impaired":0, "visual_impaired":0, "clean_effects":0, "attached_pic":0, "timed_thumbnails":0 }, "tags":{ "file_package_umid":"0x060A2B340101010501010D2313000000968F75C6B5B34D649967EEDD0076B989" } }, { "index":4, "codec_name":"pcm_s24le", "codec_long_name":"PCM signed 24-bit little-endian", "codec_type":"audio", "codec_time_base":"1/48000", "codec_tag_string":"[0][0][0][0]", "codec_tag":"0x0000", "sample_fmt":"s32", "sample_rate":"48000", "channels":1, "bits_per_sample":24, "r_frame_rate":"0/0", "avg_frame_rate":"0/0", "time_base":"1/48000", "start_pts":0, "start_time":"0.000000", "duration_ts":860160, "duration":"17.920000", "bit_rate":"1152000", "bits_per_raw_sample":"24", "disposition":{ "default":0, "dub":0, "original":0, "comment":0, "lyrics":0, "karaoke":0, "forced":0, "hearing_impaired":0, "visual_impaired":0, "clean_effects":0, "attached_pic":0, "timed_thumbnails":0 }, "tags":{ "file_package_umid":"0x060A2B340101010501010D2313000000968F75C6B5B34D649967EEDD0076B989" } }, { "index":5, "codec_name":"pcm_s24le", "codec_long_name":"PCM signed 24-bit little-endian", "codec_type":"audio", "codec_time_base":"1/48000", "codec_tag_string":"[0][0][0][0]", "codec_tag":"0x0000", "sample_fmt":"s32", "sample_rate":"48000", "channels":1, "bits_per_sample":24, "r_frame_rate":"0/0", "avg_frame_rate":"0/0", "time_base":"1/48000", "start_pts":0, "start_time":"0.000000", "duration_ts":860160, "duration":"17.920000", "bit_rate":"1152000", "bits_per_raw_sample":"24", "disposition":{ "default":0, "dub":0, "original":0, "comment":0, "lyrics":0, "karaoke":0, "forced":0, "hearing_impaired":0, "visual_impaired":0, "clean_effects":0, "attached_pic":0, "timed_thumbnails":0 }, "tags":{ "file_package_umid":"0x060A2B340101010501010D2313000000968F75C6B5B34D649967EEDD0076B989" } }, { "index":6, "codec_name":"pcm_s24le", "codec_long_name":"PCM signed 24-bit little-endian", "codec_type":"audio", "codec_time_base":"1/48000", "codec_tag_string":"[0][0][0][0]", "codec_tag":"0x0000", "sample_fmt":"s32", "sample_rate":"48000", "channels":1, "bits_per_sample":24, "r_frame_rate":"0/0", "avg_frame_rate":"0/0", "time_base":"1/48000", "start_pts":0, "start_time":"0.000000", "duration_ts":860160, "duration":"17.920000", "bit_rate":"1152000", "bits_per_raw_sample":"24", "disposition":{ "default":0, "dub":0, "original":0, "comment":0, "lyrics":0, "karaoke":0, "forced":0, "hearing_impaired":0, "visual_impaired":0, "clean_effects":0, "attached_pic":0, "timed_thumbnails":0 }, "tags":{ "file_package_umid":"0x060A2B340101010501010D2313000000968F75C6B5B34D649967EEDD0076B989" } }, { "index":7, "codec_name":"pcm_s24le", "codec_long_name":"PCM signed 24-bit little-endian", "codec_type":"audio", "codec_time_base":"1/48000", "codec_tag_string":"[0][0][0][0]", "codec_tag":"0x0000", "sample_fmt":"s32", "sample_rate":"48000", "channels":1, "bits_per_sample":24, "r_frame_rate":"0/0", "avg_frame_rate":"0/0", "time_base":"1/48000", "start_pts":0, "start_time":"0.000000", "duration_ts":860160, "duration":"17.920000", "bit_rate":"1152000", "bits_per_raw_sample":"24", "disposition":{ "default":0, "dub":0, "original":0, "comment":0, "lyrics":0, "karaoke":0, "forced":0, "hearing_impaired":0, "visual_impaired":0, "clean_effects":0, "attached_pic":0, "timed_thumbnails":0 }, "tags":{ "file_package_umid":"0x060A2B340101010501010D2313000000968F75C6B5B34D649967EEDD0076B989" } }, { "index":8, "codec_name":"pcm_s24le", "codec_long_name":"PCM signed 24-bit little-endian", "codec_type":"audio", "codec_time_base":"1/48000", "codec_tag_string":"[0][0][0][0]", "codec_tag":"0x0000", "sample_fmt":"s32", "sample_rate":"48000", "channels":1, "bits_per_sample":24, "r_frame_rate":"0/0", "avg_frame_rate":"0/0", "time_base":"1/48000", "start_pts":0, "start_time":"0.000000", "duration_ts":860160, "duration":"17.920000", "bit_rate":"1152000", "bits_per_raw_sample":"24", "disposition":{ "default":0, "dub":0, "original":0, "comment":0, "lyrics":0, "karaoke":0, "forced":0, "hearing_impaired":0, "visual_impaired":0, "clean_effects":0, "attached_pic":0, "timed_thumbnails":0 }, "tags":{ "file_package_umid":"0x060A2B340101010501010D2313000000968F75C6B5B34D649967EEDD0076B989" } } ], "format":{ "filename":"/media-caches/video-essence/VIDEO/MXF-XDCAM_HD422@50Mbps1080i25_16Ch/941.mxf", "nb_streams":9, "nb_programs":0, "format_name":"mxf", "format_long_name":"MXF (Material eXchange Format)", "start_time":"0.000000", "duration":"17.920000", "size":"135028296", "bit_rate":"60280489", "probe_score":100, "tags":{ "uid":"0a9ef41a-36b4-4066-a8a3-b95f62299b6c", "generation_uid":"e134647e-fea1-4673-91c1-afa277d13c00", "company_name":"Sony", "product_name":"MPC", "product_version":"v1.0", "application_platform":"Sony MXF Development Kit (Win32)", "product_uid":"060e2b34-0401-0103-0e06-0120027f0200", "modification_date":"2012-09-17T11:56:20.000000Z", "material_package_umid":"0x060A2B340101010501010D231300000081C32F48A63347D4890F55D3ADC25B99", "timecode":"00:35:30:08" } } }

How to display image for particular time in a video using ffmpeg

14 février 2020, par Pratik Bhingardeve

I am trying to created a video from the sequence of images. But i have to display each image with different numbers of seconds. How to do this with FFMPEG.

Thanks in advance.

Newest 'ffmpeg' Questions - Stack Overflow

Les articles publiés sur le site

[Turmux][ffmpeg] encounter "can't open stat file" when use "-pass"

How to process .ts files used by flowplayer ?

Convert RTP/UDP Stream to HTTP with ffmpeg

ffmpeg merge multiple (N) mono audio channels of a MXF video to multiple (M) stereo channels of MP4 video

How to display image for particular time in a video using ffmpeg

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